The invention discloses an automatic rhinestone ironing and pattern arranging device and an automatic rhinestone ironing and pattern arranging method thereof. The automatic rhinestone ironing and pattern arranging device comprises a working table, a rhinestone brushing module, a discharge mechanism, an output mechanism, an ironing paper conveying rubber covered roller set and a lining conveying rubber covered roller set. The rhinestone brushing module further comprises a template belt wound around a plurality of transmission rollers in a circulating mode. A plurality of template holes for containing rhinestone and forming a designated ironed pattern are formed in the outer surface of the template belt. A material box attached to the surface of the template belt and used for containing rhinestone and a pressing mechanism pressed to the surface of the template belt and used for tightly attaching ironing paper to the template belt are arranged at the upper portion of the template belt side by side. The manual rhinestone brushing process is simulated, rhinestone is brushed into the template belt to form the pattern, then the ironing paper adheres to and takes out rhinestone in the template belt, and finally the ironing paper is attached to a lining. The automatic rhinestone ironing and pattern arranging device and the automatic rhinestone ironing and pattern arranging method are simple in structure, low in manufacturing cost, wide in application range, stable in performance and high in production efficiency.